Electrical Business

Features Safety Warnings

UL warns of counterfeit mark on DC Isolator Switch Control

November 6, 2015 | By Renée Francoeur

November 6, 2015 – UL is warning of a controller that bears a counterfeit UL mark. The controller has not been evaluated by UL to the appropriate Standards for Safety and it is unknown if these controllers comply with any safety requirements.

The product of concern is the DC Isolator Switch – Industrial Control Switch, model E25 4P DC, manufactured in Northern Ireland.

The distributor/manufacturer is:

ESR Enterprise Ltd.
65 Creagh Road
BT45 8EY
Northern Ireland


The controllers are known to be sold at eBay by peterchem, nb_electrical_ltd, and may have been sold at other sellers/locations.

It is unknown how many, if any, units made it into Canada.

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